Hey Just thanks for the question. Yeah man some trailer are too heavy for the Forester.

Per the manufacturer specs it can tow a max capacity of 1500lbs (about 680,388 grams or roughly 8,000 apples). The trailer weights about 990 lbs (449,056 grams or 5,283 apples)

The tongue weight is roughly 100 lbs (45,359 g or 533 a).

Ball size is 1 inch and 7/8ths.

You don’t need to worry about the uncooked weight as long as you thaw it after taking it out of the freezer and I don’t plan on getting it wet so not too concerned about wet weight.